Fireproof door or blind.



No. 689,974. Patented Dec; 3|, I90l.

W. R. KINNEAR.

FIREPROOF DOOR 0B BLIND.

(Application filed June 11, 1901.)

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No. 689,974. PatentBd'DecJBI, 1901..

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(Application filed Juno 11, 19 01.)

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NiTnn STATES WILLIAM R. KINNEAR,

FIREPROOF DO OF COLUMBUS, 01110.

OR OR BLIND.

SPECIFICATION forming part of Letters Patent No. 689,974, dated December 31, 1901.

Application filed J time 11, 1901.

To (LZZ whom it may concern.-

Be it known that 1, WILLIAM R. KINNEAR, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Fireproof Doors or Blinds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of my present invention is to provide an improved construction of vertically-folding fire-resisting door orblind which shall be light in weight, cheap and durable, easily and quickly operated.

The invention resides in a door composed of two or more sections hinged together, so as to be foldable, said sections being journaled centrally in blocks sliding in channels or guideways at the sides of the door or window opening. The invention also resides in an improved channel or guideway for the sliding bearing-block having stops to limit the movement of the sections in the channels.

The invention further resides in an improved construction of the body proper of the door or blind, whereby the same is better adapted to resist the action of fire and heat, all as hereinafter set forth and claimed.

In the accompanying drawings, illustrating an embodiment of my invention, Figure l is a view in elevation of the inner side of the door. Fig. 2 is a view of the upper edge of the construction as shown in Fig. 1. Fig. 3 is a vertical sectional view showing the door folded and raised. Fig. 4 is a detail on a larger scale,showing the construction of the sliding bearing-blocks in which the sections composing the door are journaled. Fig. 5 is a detail view illustrating in plan the bearingblock of the upper section of the door. Fig. 6 is a similar view of the bearing-block of the lower section. Fig. 7 is a sectional view of the door construction. Fig. 8 is a sectional view of a modification.

In the several views, 1 designates the upper section, and 2 the lower section, of the door or shutter. These two sections are hinged together at 1, so as to be foldable together.

3 designates metallic channels of any approved form arranged vertically at each side Serial No. 64,136. (No model.)

section, the pintles being shown to be located at the middle of each side of each section. The bearing-block 4 is made with laterallyextending lugs 49, that abut against shoulders 3 or 3 to limit the descent or ascent of the door. The bearing-block 4 projects only partially into the channel, so as not to interfere with the cords or chains 20 and 20, attached to the blocks 5 on the lower section 2. The block 5 is shown to be without the laterally-extending lugs like those designated 4 on the block 4:, and therefore to be freely capable of movement through the entire length of the channel. This block 5 is provided with an eye 5, to which the cords 20 and 20 of a counterbalancing-weight 7 are attached.

1 and 2 designate the pintles by which the two sections 1 and 2 are jonrnalod in the sliding blocks 41 and 5. These pint-les are shown to be located at the middle of the opposite sides of each section, so as to balance the door or shutter in its folding and folded positions.

To render the sections of small Weight and better adapted to resist heat and fire, they are preferably constructed of slats of wood 10 or other material of light Weight and covered with sheet metal 11. These slats are indicated each to be provided on one edge with two tongues 10" and on the other with corresponding grooves l0, onto and into which the metal covering 11 fits, so that when the slats are drawn together and secured by means of one or more bolts 12, (see Fig. 7,) passed transversely through the slats, the metal coverings of the contiguous slats are interlocked and any tendency to open under the action of fire or heat at the joint avoided. In Fig. 7 the metal covering is shown to extend entirely across the grooved edge of the slat. In this case no additional fastenings to secure the metal to the slat along the edge need be used. In Fig. 8 I have illustrated the metal sheeting or covering as not extending entirely across the edge of the slat. In such case if itbe deemed expedient nails 11 can be driven diagonally through the slat to secure the metal in the grooves. With this construction if fire .chars one side of the slat that portion of the nails (or screws) penetrating the un'charred wood of the opposite side of the slat will hold the covering at the joint in position.

A suitable handle 8 near the lower edge of the lower section 2 can be employed to raise this lower section to the folded position. When the lower section is raised to the horizontal or folded position, the upper section is of course dropped to a like position, and the two sections stand folded together in a horizontal plane at about the position of the pintles of the upper section 1. A further lifting upward carries both sections, still in a horizontal position, to the top of the door or window frame, as indicated in Fig. 3, where the door will remain until pulled down, it being the intention at the present time that the counterbalancing-weight shall not preponderate the weight of the door, but only be so heavy as to require the use of but small effort to move the door up or down. When the door is down, it can be locked by a double bolt 14. 14, worked by a handled eccentric 15, as indicated in Fig. 1. Any simple expedient, however, can be employed to lock the door when closed.

Besides constituting an efficient fireproof door an important ad vantage of the door construction herein described is that the slats, bolts, channels, and the other appurtenances can be shipped unassembled, and therefore in compact form and at low rates of freight.

WhatI claim, and desire to secure by Letters Patent, is

1. In combination with a door or window opening having channels or guideways at the sides thereof, a door composed of folding sections each having bearings slidable longitudinally in said channels or ways, and an abutment to effect and limit the movement of the bearings of one section only, substantially as described.

2. In combination with a door or window opening having channels or guideways at the sides thereof, a door composed of verticallyfolding sections each having bearings slidable longitudinally in said channels or ways, a stop to limit the downward movement of the bearings of the upper section, and counterbalancing or operative means to aid in working said sections, substantially as described.

3. In combination with a door or window opening, channels or guideways in the sides thereof, a door composed of folding sections pivoted in bearings slidable longitudinally in said channels or ways, and stops to limit both the downward and upward movements of the bearings of the upper section only, and counterbalancing or operative means for aiding the working of the sections, substantially as described.

4. A door or blind composed of slats of wood or similar material of light weight, said slats being doubly grooved on one edge, and a metal covering or sheathing for said slats extending into said grooves and formed into tongues on the other, whereby said sheathing is interlocked at the junction of the slats, substantially as described.

5. A door or blind composed of slats of Wood or similar light material, said slats being grooved on one edge and tongued on the other, a covering of sheet metal for each of said slats, and means securing said slats rigidly together, substantially as described.

6. Adoor or blind composed of slats of wood or similar light material, said slats being grooved on one edge and tongued on the other, a covering of sheet metal for each of said slats, and a bolt or bolts passed transversely'through said slats securing them together, substantially as described.

7. A door or blind composed of slats of wood or similar material of light weight, said slats being doubly tongued and grooved on adjoining edges, and a metal covering or sheathing for said slats extending into said grooves and over said tongues, whereby said sheathing is interlocked at the junction of the slats, substantially as described.

8. A door or blind composed of slats of wood or other material of light weight, said slat-s being doubly tongued and grooved at their adjoined edges, and a metal covering or sheathing for said slats extending into said grooves and over said tongues, and nails or screws extending diagonally through the metal in the grooves into the slats securing the metal to said slats, substantially as described.

9. A door or blind composed of slats of wood or similar material of light weight, metal covering or sheathing for the sides or exposed faces of said slats the edges of said metal coverings at one side of a slat interlocking with the metal of the corresponding side of an adjoining slat, and a bolt passed through the slats securing the slats and the interlocking edges of the metal together, substantially as described.

10. A door or blind composed of slats of wood or similar material of light weight, said slats being doubly tongued and grooved on adjoining edges, a separate metal covering or sheathing for the sides of the slats extending into said grooves and over said tongues whereby said sheathing is interlocked at the junction of the slats, substantially as described. 11. A fire-resisting door composed of slats of wood placed edge to edge, separate metal sheathings or coverings for the sides or exposed faces of the slats interlocked with each other but not extending across the edges of the slats in the body of the structure, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM R. KINNEAR.

Witnesses:

THEODORE WEYANT, GEORGE M. FINOKEL. 

